Sand-blast apparatus



Sept. 20, 1927.

ill -I llH Patented Sept. 20,1927.

UNITED. STATES 1,643,175 :PATENT OFFICE.

ELMER RICH, 33., OF CHICAGO, ILLINOIS, ASSIGNOR TO THE AMERICAN FOUNDRY EQUIPMENT COMPANY, OE NEW YORK, N. Y., A CORPORATION OHIO.

SAND-BLAST APPARATUS.

Application filed January 20, 1919, Serial No. 271,965. Renewed July 28, 1924.

Myr invention relates to sand blast apparatus by which a sand blast may be employed v or cleaning or otherwise treating castings or other articles.

The principal object of the invention is to provide a simple and practical construction of sand blast apparatus.

A further object of the invention is to secure thoroughness and efficiency by causl ing all sides of the articles to be treated.

' Another object of the invention is to permit ready access to the articles under treatment, to permit their removal and replacement, and to permit their handling for various purposes.

A still further object of the invention is to permit the quick and ready introduction of thearticles into the apparatus for treatment and also the quick and ready removal of the same therefrom.

A further object of the invention is to accomplish the foregoing and other desirable results in a simple and expeditious manner. I

In the accompanying drawings Fig. 1 is a vertical section of a sand blast apparatus embodying my present invention;

Fig. 2 is a cross section of the same on line 2-2 in Fig. 1.

The sand blast apparatus shown comprises a housing 1 preferably made of metal or other suitable material. This housing provides a room or chamber in which articles to be treated are placed. Said housing 1' is conveniently made with vertical sides 1 sloping top sections 22, and a chimney or outlet portion 3 extending upwardly from the members 2-2 and forming a chimney or outlet 4 for the escape of flying dust and dirt. The side members 2-2 are provided with panes 5 of glass .or other transparent material which are preferably laid at an inclination, so that the operator may see'the interior of the room or chamber. Within the housing 1 is a truck'7 having Wheels, 88 which are mounted on tracks 9-9 at the bottom or floor of the housing. This truck 7 supports the articles which are to be treated, one such article 10 being shown mounted on said truck.

The truck 7 is of a length substantially equal to the length of the housing so that when said truck is in position its ends are at the ends of the housing, as shown in Fig. 1. Said truck 7 is preferably prothe truck 7. The hose may be moved 'vided with upwardly extending ends 11,

which form end walls for the housing when said truck is in position therein. Thus the end walls of the truck 7 close or substantially close the otherwise open ends of said housing.

The sides of the housing are provided with swinging doors 1212 mounted on hinges 1313 at the ends of'the housing, so

that said doors maybe swung in and out to open and close the sides of said housing. Above the doors 12 there are openings or slots 14: which are equipped with strands 15 of rubber or like'material forming curtains. Thus a hose with a sand blast nozzle may be pushed through the curtains 15 and caused to operate upon castings restin on 4.

7 back and forth within the openings or slots 14 so as to cause the sandto act upon various parts of the article'and said hose may be used on each side of the apparatus, that is inserted through the slots or openings 14 on the opposite sides of the apparatus.

Thus the sand blast may-be applied to practically all sides andthe top of said article or articles. At any time during the treatment, the operator may open either one or both of the doors 12 on either or both sides of th housing and move or shift the article or articles under treatment so as to place it or them in any desireddifi'erent position or positions. Thus a thorough and complete treatment of the. articles may be accomplished, and this without any movement or change in the apparatus itself.

For thus treating .the articles, a flexible hose 16 having a nozzle 17 is shown. The

hose 16 is connected to a standpipe l8 hav- 7 ing an overhanging or extending arm 19, the end of which is about the middle of housing 1. Thus the hose 16 and nozzle 17 may easily be shifted from one side of the housing to the other, to use the nozzle 17 through either opening 14. The pipe 18 is supplied with air by pipe 19, and with sand by pipe 20, the air pipe 19 having a controlling valve 21. The sand pipe 20 is connected at 22 with the pipe 18. and extends at 23 into the sandhopper 24. Thus in operation the castings or othe articles are run into the housing on a truck readily accomplished by the use of a second truck 7 which may be: pushed against the truck 7 so as to force the latter from the housing at the same time that the truck 7- enters it. The truck 7 has previously been supplied with other articles to be treated. Thus by one operation the treated articles on one truck will be removed and fresh articles on another truck will be introduced. l/Vhen the articles on truck 7 are suiiiciently treated truck 7 is again introduced into the housing, having had the treated articles removed and a fresh set of the same put in their places. i

It will be understood that changes and modifications may be made without depart ing from the spirit of the invention.

lVhat I claim is:

1. In combination, a housing forming a treatment chamber, said housing being provided with oppositely arranged openings for the insertion of a sand blast nozzle and a truck for holding articles to be treated, said truck being adapted to be moved into and out of said housing and said housing being provided with an opening through which said truck may be moved, said truck having one end provided with a wall adapted to close said opening in said housing.

2. In combination, a housing adapted to form a treatment chamber, said housing having its opposite sides provided with curtained apertures for the insertion of sand blast nozzles and having its opposite ends made open and a truck adapted to be moved into and out of said housing to carry articles for treatment into and out of the same, said truck having its opposite ends provided with vertically arranged end members capable of closing the open ends of said housing.

3. In combination, a housing for use in sand blasting apparatus adapted to form a treatment chamber, said housing having its opposite sides provided with curtained apertures for the insertion of sand blast nozzles and having its opposite ends made open and a truck adapted to be moved into and out of said housing to carry articles for treatment into and out of the same, said truck having its opposite ends provided with vertically arranged end members capable of closing the open ends of said housing, the sides of said housing being provided with doors topermit access to the interior of the housing. 7

4. A sand blast apparatus comprising a housing having its opposite sides provided with elongated openings extending from end to end and also provided with elongated windows above and contiguous to said elongated openings and a flexible hose adapted to be extended to either one of said side openings and moved along the same and provided with a sand blast nozzle at the same.

5. A sand blast apparatus comprising a housing having its opposite sides provided with curtained openings fora sand blast nozzle, said housing having one of its ends provided with an opening for the insertion of a support for an article to be treated, a chimney for the sand and air at the top of the housing, and a flexible hose adapted to be extended to either one of said side openings and having its end provided with a sand blast nozzle. 4

6. In combination a housing for use in sand blast apparatus, its oppositesides provided with elongatedcurtained openings extending substantially from end to end of said sides, windows above said openings, and swinging doors below said openings, said housing being provided at one of its ends with an opening by means of which articles to be treated may be inserted into the treatment chamber.

7. A sand blast apparatus comprisin a housing having its opposite sides provi ed with elongated curtained openings extending substantially from end to end of said sides, windows above said openings, and swinging doors below said openings, said housing being provided at one of its ends with an opening by means of which articles to be treated may be inserted into the treatment chamber, and a flexible hose adapted to be extended to either one of said side openings and to be moved freely along the same, said hose having its end provided with a sand blast nozzle.

'8. A sand blast apparatus comprising a I housing having its opposite sides provided with elongated curtained openings extending substantially from end to end of said sides, windows above and contiguous to said openings, and swinging doors below said I openings, said housing being provided at one of its ends with an opening by means of which articles to be treated may be inserted into the treatment chamber, and a flexible hose adapted to be extended to either one of i said side openings and to be moved freely along the same, said hose having its end provided with a sand blast nozzle, and having its other end mounted aboveand at the -midwindows above and contiguous to said open- 1 ings, and swinging doors below and contiguous to said openings, said housing being provided at one of its ends with an opening by means of which articles to be treated may be inserted into the treatment chamber, and 1 a flexible hose adapted to be extended to either one of said side openings and to be moved freely along the same, said hose having its end provided with a sand blast nozzle, and having its other end mounted above and at the middle of said housing, said housing having its top provided with an elongated opening forming a chimney.

10. A sand blast apparatus comprising a housing forming a treatment chamber, said housing having its 1 opposite sides provided with elongated curtained openings and also with elongated windows above said openings and swinging doo'rs below said openings.

11. A sand blast apparatus comprising a housing forming a treatment chamber, said housing having its opposite sides provided with elongated curtained openings and also with elongated windows above said openings and swinging doors below said openings, said housing being provided with an opening between the aforesaid openings for the insertion of the article to be treated.

12. A sand blast apparatus comprising a housing forming a treatment chamber, said housing having one of its sides provided with an elongated curtained opening and also with an elongated window above said opening, .and a swinging door below said open- %3. A sand blast apparatus comprising a housing forming a treatment chamber, said housing having one of its sides provided with elongated curtained openings and also with an elongated window above said opening, and a hose carrying a sand blast nozzle which may be inserted through said opening to operate on articles inside of the treatment chamberQ 14. A sand blast apparatus comprising a housing forming a treatment chamber, said housing having its opposite sides provided with elongated curtained openings and also with elongated windows above said openings and swinging doors below said openings, and a hose provided with a sand blast nozzle which may be inserted through said curtained openings to treat articles in the treatment chamber.

15. A sand blast apparatus comprising a/ housing forming a treatment chamber, a side opening through which a sand blast nozzle may operate, an end opening for the insertion of articles to be treated, and a side opening adjacent to the sand blast-nozzle opening to permit inspection of the articles.

16. A sand blast apparatus comprising a housing forming a treatment chamber, said housing having its opposite sides provided with elongated curtained openings and also with elongated windows above said openings and swinging doors below said openings, said housing having an end opening for permitting the insertion of articles to be treated.

17. A sand blast apparatus comprising a housing for one side provided with a curtained-aperture, a sand blast nozzle carried by a flexible hose which permits the insertion of the nozzle through said curtained aperture, a window above. the sand blast nozzle aperture, a swinging door below said sand blast nozzle aperture, an opening for the admission of articles-to be treated, and a movable carrier on which said articles may be placed to permit them to be introduced into and withdrawn from said housing.

18. A sand blast apparatus comprising a housing forming a treatment chamber, one side of said housing being provided with an elongated opening extending substantially from end to end of the housing to permit the insertion and horizontal movement of a sand blast nozzle, said housing being also provided with a window device located above said sand blast nozzle opening and extending lengthwise thereof, and a flexible hose connected at one end and having its free end provided with a nozzle and adapted to permit said nozzle to be moved back and forth in said opening as may be desired for sand blasting operations.

In witness whereof I hereunto subscribe my name this 21st day of November, A. D.,

ELMER A. RICH, JR, 

